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DNA分析技术有坚实的理论基础、成熟的操作技术和高度自动化检测仪器,能够达到同一认定的地步,与其他物证技术相比具有高度科学性、可靠性和准确性,是科学证据中的佼佼者。然而,DNA证据对案件事实的证明作用受多种因素制约,其中包括遗传标记分析的影响。同一份生物物证,检测的遗传标记类型不同,采用识别体系大小不同,其结果解释不同,获得DNA证据的证明力大不相同。
DNA analysis technology has a solid theoretical foundation, mature operating technology and highly automated detection equipment, to achieve the same point of recognition, and compared with other evidence technology has a high degree of scientific, reliability and accuracy, is the leader in scientific evidence . However, the evidence that DNA evidence can contribute to the facts of a case is constrained by a number of factors, including the impact of genetic marker analysis. The same biological evidence, the detection of different types of genetic markers, recognition system using different sizes, the interpretation of the results of different, to obtain evidence of DNA evidence of very different.